Molding-flask fastener.



L SONNENFELD.

MOLDING FLASK FASTENER.

APPLlcAnoN FILED c. 4. |911.

y UNTEED STATES ATENT kJOI-IN' SONNENFELD, OF LIMA, OHIO.`

MODDING-mask rAsTnNER.

T 0 all whom t may' concern.'

Be it known that I, JOHN SONNENFEL'D, formerly a citizen of Hungary, twoyears ago filed declaration of intention of citizenship in the UnitedStates, residence in the United States four years, second papers notissued but as soon as entitled thereto will make application for finalpapers and will be a citizen of the United States, residing at Lima, inthe county of Allen and State of Ohio, have invented certain new anduseful improvements in Molding-Flask Fasteners; and l do declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it appertains tomake and use the same.

My invention relates to improvements in flasks used for molding purposesin foundries and the like, the principal object being to provide asimple and inexpensive, yet a highly eliicient fastener for securing theupper and lower sections of the flask together so as to prevent allmanner of relative movement between the two until it is required thatthey shall be detached.

With the foregoing general object in view, the invention resides in thenovel features of construction and unique combinations of parts to behereinafter fully described and claimed, the descriptive matter beingsupplemented by the accompanying drawings which form a part of thisspecification and in which:-

Figure 1 is a side elevation of a molding flask showing the applicationof the improved fastener;

Fig. :2 is an end elevation of Fig. l; and

Fig. 3 is a perspective view of the fastener detached.

In the drawings above briefly described, the numerals 1 and 2 designatethe upper and lower sections of a common type of molding flask, saidsections being commonly known as the cope and drag, respectively. It iswell known, that when employing the usual flask, the cope and drag oftenshift relatively, so that a poor casting results. By the use of theimproved fastener, however, all such difliculties are-overcome.

A rectangular plate 3 is secured by bolts or the like to the uppersection or cope 1, said plate having on its outer face an integral lug lof an;1 suitable size and shape, the outer end of said lug having a pairof 4Specification of Letters Patent. *i ,'Ptentd Dec. 11, 1917.Application mea oetober 4,1917; serial N65 194,727; i

vertic'al pin 6 is formed integrally with and depends from the lug 4,the lower end of said pin being receivable in openings 7 formed in apair of vertically spaced hori- Zontal ears 8 which extend outwardlyfrom a vertical plate 9 suitably secured to the drag 2.

By the provision of the pin 6 and the apertured lugs 8, it will'beobvious that relative horizontal shifting of the drag and cope will beprevented, and in order that said cope may not creep upwardly when themolten metal is poured into the flask, I provide a latch lever 10 whoseupper end is pivotcd at 11 between the ears 5, the lower end of saidlever having a pair of integral noses l2 for reception beneath the ears8 as shown clearly in Fig. l, said ears and noses being suitablybeveledfor easy engagement. The lower end of the lever l0 is bypreference curved outwardly and provided with an integral ball 13 whoseweight assists in moving the lever to operative position, said ball alsoserving as a hand grip in releasing the device.

From the foregoing, taken in connection with the accompanying drawing,it will be obvious that although the improved fastener is of extremelysimple and inexpensive construction, it will be highly efficient anddurable, it being understood that the fasteners may be used at numerouspoints on the flask, and that minor changes in the construction of thedevice may be made within the scope of the invention as claimed.

I claim:

l. A fastener for the upper and lower sections of molding flaskscomprising a lug extending outwardly from the upper section, a verticalpin depending rigidly from said lug, a horizontal ear extendingoutwardly from the lower section of the flask and having an openingreceiving said pin, a latch lever pivoted to said lug at its upper end,and a nose on said lever for reception beneath said ear to preventwithdrawal of said pin.

2. A fastener for the upper and lower sections of molding flasksvcomprising a vertically disposed attaching plate to be secured to theupper section, a lug formed integrally with and extending outwardly fromsaid plate, an ear formed integrally with the outer end of said lug, avertical pin formed integrally with said lug and depending 110therefrom, a. second vertical attaching plate to be'seeured to the lowersection of the flask, a horizontal ear formed integrally with andextending outwardly from said second plate, said ear having an openingto receive said pin, a vertically swinging latch lever pivoted at itsupper end to the ear of said lug, a beveled nose on the lower end ofsaid lever for reception beneath said horizontal ear, and a weight onthe outer edge 10 of said lever, at the lower end thereof.

In testimony whereof I have hereunto set my hand in the presence of twosubscribing witnesses.

JOHN SONNENFELD.

Vvitnesses FINNLEY Z. DEMPSTER, ROLLA WILDANER.

@opeothi patent may. be obtained for ve cents each, by addressing theCommissioner of latents.

- Washington, JD.. Q.

